name: Update submodules

on:
  workflow_dispatch:
  schedule:
    - cron: '0 0 * * *'

jobs:
  update:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v2

      - name: Pull & update submodules recursively
        run: |
          git submodule update --init --recursive
          git submodule update --recursive --remote
      - name: Commit & push changes
        run: |
          git config --global user.name GitHub
          git config --global user.email actions@github.com
          git commit -am "[dmitmel] Update submodule" | true
          git push